document.write( "Question 930772: Given the following set of paired data, calculate the correlation coefficient. Round your final answer to two decimal places.\r
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\n" ); document.write( "\n" ); document.write( "x
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\n" ); document.write( "6
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\n" ); document.write( "9
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\n" ); document.write( "12
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\n" ); document.write( "15
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\n" ); document.write( "23
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\n" ); document.write( "\n" ); document.write( "y
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\n" ); document.write( "11
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\n" ); document.write( "5
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\n" ); document.write( "1
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\n" ); document.write( "6
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\n" ); document.write( "3
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\n" ); document.write( "\n" ); document.write( "My Solution:\r
\n" ); document.write( "\n" ); document.write( "X Y XY X2 Y2
\n" ); document.write( "6 11 66 36 121
\n" ); document.write( "9 5 45 81 25
\n" ); document.write( "12 1 12 144 1
\n" ); document.write( "15 6 90 225 36
\n" ); document.write( "23 3 69 529 9
\n" ); document.write( "Ex=65 EY= 37 EXY= 282 Ex2= 1015 EY2= 192
\n" ); document.write( "n = 5\r
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\n" ); document.write( "\n" ); document.write( "R= 5(282)-(65)(37) Divided by Square root of
\n" ); document.write( "[5(1015) -(65)2power][5(192)-(37)2power]\r
\n" ); document.write( "\n" ); document.write( "Which gave me \r
\n" ); document.write( "\n" ); document.write( "-995Divded by square root of
\n" ); document.write( "5075 -4225 = [850][-409] = 347650 square root 589.6185207\r
\n" ); document.write( "\n" ); document.write( "SO,-995 divided by 589.6185207 = 1.687 Rounded to two decimalplacs is 1.69 which was marked wrong please tell me where i went wrong
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Algebra.Com's Answer #565324 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi
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document.write( "	xi	yi	(xi-13)	(yi-5.2)	(xi-x)2	(yi-y)2	(xi - x)(yi - y)	
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document.write( "	6	11	-7	5.8	49	33.64	-40.6	
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document.write( "2	9	5	-4	-0.2	16	0.04	0.8	
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document.write( "3	12	1	-1	-4.2	1	17.64	4.2	
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document.write( "4	15	6	2	0.8	4	0.64	1.6	
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document.write( "5	23	3	10	-2.2	100	4.84	-22	
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document.write( "Sum	65	26	0	0	170	56.8	-56	
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document.write( "Mean	13	5.2		sd	5.83	3.370		
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document.write( "..........
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document.write( "R^2 = = .325
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document.write( "R = .570
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document.write( ".........
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document.write( "Excel Scatter Plot (Using specific layout options)
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